In a pan heat melted butter and add mushrooms, leeks, shallots, garlic, tomato paste,
masala wine and thyme.
Cook 5 minutes and add cream and continue to cook 20 minutes, stirring occasionally.
Season with salt and pepper.
If sauce is too thin use cornstarch to thicken.
Place salmon on a baking pan and season with salt and pepper.
Roast salmon at 325 degrees for 20 minutes or until cooked.
Place roasted salmon on a plate and cover with sauce.
Garnish with leeks if desired.